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Mend Vaillant Ecotec Pressure Bar

how do I fix vaillant ecotec plus reading F.75?

My vaillant ecotec plus displays f.75. Pressure reads 1.4 bar. Have no heating or hot water. how do I fix this?

hazel
February 2012
VaillantHeating, Home Heating SystemsEcotec Pressure Bar
Reset it, unfortunately its a very open ended trouble code that can be caused my multiple things.
Failing that turn the mains off to the boiler and wait 5 minutes this will kill any stored power in the pcb.

bill
February 2012
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